157553387 has 2 divisors, whose sum is σ = 157553388. Its totient is φ = 157553386.

The previous prime is 157553369. The next prime is 157553497. The reversal of 157553387 is 783355751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157553387 - 2⁶ = 157553323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157553087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78776693 + 78776694.

It is an arithmetic number, because the mean of its divisors is an integer number (78776694).

Almost surely, 2^157553387 is an apocalyptic number.

157553387 is a deficient number, since it is larger than the sum of its proper divisors (1).

157553387 is an equidigital number, since it uses as much as digits as its factorization.

157553387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 441000, while the sum is 44.

The square root of 157553387 is about 12552.0272067901. The cubic root of 157553387 is about 540.1021605982.

The spelling of 157553387 in words is "one hundred fifty-seven million, five hundred fifty-three thousand, three hundred eighty-seven".