157492222 has 8 divisors (see below), whose sum is σ = 236296296. Its totient is φ = 78726792.

The previous prime is 157492219. The next prime is 157492249. The reversal of 157492222 is 222294751.

It is a happy number.

157492222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4948 + ... + 18424.

It is an arithmetic number, because the mean of its divisors is an integer number (29537037).

Almost surely, 2^157492222 is an apocalyptic number.

157492222 is a deficient number, since it is larger than the sum of its proper divisors (78804074).

157492222 is a wasteful number, since it uses less digits than its factorization.

157492222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19322.

The product of its digits is 20160, while the sum is 34.

The square root of 157492222 is about 12549.5905112478. The cubic root of 157492222 is about 540.0322591611.

It can be divided in two parts, 15749 and 2222, that added together give a palindrome (17971).

The spelling of 157492222 in words is "one hundred fifty-seven million, four hundred ninety-two thousand, two hundred twenty-two".