151370261 has 12 divisors (see below), whose sum is σ = 186442668. Its totient is φ = 122113152.

The previous prime is 151370249. The next prime is 151370281. The reversal of 151370261 is 162073151.

It can be written as a sum of positive squares in 2 ways, for example, as 63123025 + 88247236 = 7945^2 + 9394^2 .

It is not a de Polignac number, because 151370261 - 2¹⁰ = 151369237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 151370261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151370281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90026 + ... + 91691.

It is an arithmetic number, because the mean of its divisors is an integer number (15536889).

Almost surely, 2^151370261 is an apocalyptic number.

It is an amenable number.

151370261 is a deficient number, since it is larger than the sum of its proper divisors (35072407).

151370261 is a wasteful number, since it uses less digits than its factorization.

151370261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181748 (or 181741 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 151370261 is about 12303.2622096743. The cubic root of 151370261 is about 532.9422935248.

The spelling of 151370261 in words is "one hundred fifty-one million, three hundred seventy thousand, two hundred sixty-one".