157880461 has 2 divisors, whose sum is σ = 157880462. Its totient is φ = 157880460.

The previous prime is 157880453. The next prime is 157880501. The reversal of 157880461 is 164088751.

It is an a-pointer prime, because the next prime (157880501) can be obtained adding 157880461 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152028900 + 5851561 = 12330^2 + 2419^2 .

It is a cyclic number.

It is not a de Polignac number, because 157880461 - 2³ = 157880453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157880561) 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, 78940230 + 78940231.

It is an arithmetic number, because the mean of its divisors is an integer number (78940231).

Almost surely, 2^157880461 is an apocalyptic number.

It is an amenable number.

157880461 is a deficient number, since it is larger than the sum of its proper divisors (1).

157880461 is an equidigital number, since it uses as much as digits as its factorization.

157880461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 157880461 is about 12565.0491841457. The cubic root of 157880461 is about 540.4756451604.

The spelling of 157880461 in words is "one hundred fifty-seven million, eight hundred eighty thousand, four hundred sixty-one".