157022208 has 144 divisors (see below), whose sum is σ = 518721840. Its totient is φ = 44826624.

The previous prime is 157022189. The next prime is 157022209. The reversal of 157022208 is 802220751.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157022209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128416 + ... + 129632.

It is an arithmetic number, because the mean of its divisors is an integer number (3602235).

Almost surely, 2^157022208 is an apocalyptic number.

157022208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157022208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259360920).

157022208 is an abundant number, since it is smaller than the sum of its proper divisors (361699632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157022208 is a wasteful number, since it uses less digits than its factorization.

157022208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 157022208 is about 12530.8502504818. The cubic root of 157022208 is about 539.4945063793.

Adding to 157022208 its reverse (802220751), we get a palindrome (959242959).

The spelling of 157022208 in words is "one hundred fifty-seven million, twenty-two thousand, two hundred eight".