157254720 has 168 divisors, whose sum is σ = 580973184. Its totient is φ = 35933184.

The previous prime is 157254719. The next prime is 157254737. The reversal of 157254720 is 27452751.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45369 + ... + 48711.

Almost surely, 2^157254720 is an apocalyptic number.

157254720 is a gapful number since it is divisible by the number (10) 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 157254720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290486592).

157254720 is an abundant number, since it is smaller than the sum of its proper divisors (423718464).

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

157254720 is a wasteful number, since it uses less digits than its factorization.

157254720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377 (or 3360 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 157254720 is about 12540.1244012968. The cubic root of 157254720 is about 539.7606621123.

The spelling of 157254720 in words is "one hundred fifty-seven million, two hundred fifty-four thousand, seven hundred twenty".