157745553 has 12 divisors (see below), whose sum is σ = 244666800. Its totient is φ = 90140232.

The previous prime is 157745551. The next prime is 157745561. The reversal of 157745553 is 355547751.

It is not a de Polignac number, because 157745553 - 2¹ = 157745551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157745551) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 536403 + ... + 536696.

It is an arithmetic number, because the mean of its divisors is an integer number (20388900).

Almost surely, 2^157745553 is an apocalyptic number.

It is an amenable number.

157745553 is a deficient number, since it is larger than the sum of its proper divisors (86921247).

157745553 is a wasteful number, since it uses less digits than its factorization.

157745553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073116 (or 1073109 counting only the distinct ones).

The product of its digits is 367500, while the sum is 42.

The square root of 157745553 is about 12559.6796535580. The cubic root of 157745553 is about 540.3216567861.

The spelling of 157745553 in words is "one hundred fifty-seven million, seven hundred forty-five thousand, five hundred fifty-three".