152780137 has 2 divisors, whose sum is σ = 152780138. Its totient is φ = 152780136.

The previous prime is 152780123. The next prime is 152780171. The reversal of 152780137 is 731087251.

It is an a-pointer prime, because the next prime (152780171) can be obtained adding 152780137 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100420441 + 52359696 = 10021^2 + 7236^2 .

It is a cyclic number.

It is not a de Polignac number, because 152780137 - 2¹¹ = 152778089 is a prime.

It is not a weakly prime, because it can be changed into another prime (152780107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76390068 + 76390069.

It is an arithmetic number, because the mean of its divisors is an integer number (76390069).

Almost surely, 2^152780137 is an apocalyptic number.

It is an amenable number.

152780137 is a deficient number, since it is larger than the sum of its proper divisors (1).

152780137 is an equidigital number, since it uses as much as digits as its factorization.

152780137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 152780137 is about 12360.4262466955. The cubic root of 152780137 is about 534.5918067256.

The spelling of 152780137 in words is "one hundred fifty-two million, seven hundred eighty thousand, one hundred thirty-seven".