157303477 has 2 divisors, whose sum is σ = 157303478. Its totient is φ = 157303476.

The previous prime is 157303439. The next prime is 157303543. The reversal of 157303477 is 774303751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81108036 + 76195441 = 9006^2 + 8729^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157303477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157303427) 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 as a sum of consecutive naturals, namely, 78651738 + 78651739.

It is an arithmetic number, because the mean of its divisors is an integer number (78651739).

Almost surely, 2^157303477 is an apocalyptic number.

It is an amenable number.

157303477 is a deficient number, since it is larger than the sum of its proper divisors (1).

157303477 is an equidigital number, since it uses as much as digits as its factorization.

157303477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 157303477 is about 12542.0682903579. The cubic root of 157303477 is about 539.8164408116.

The spelling of 157303477 in words is "one hundred fifty-seven million, three hundred three thousand, four hundred seventy-seven".