149870961 has 12 divisors (see below), whose sum is σ = 220029940. Its totient is φ = 98275680.

The previous prime is 149870951. The next prime is 149870983. The reversal of 149870961 is 169078941.

It is a happy number.

149870961 is a `hidden beast` number, since 1 + 498 + 70 + 96 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3920400 + 145950561 = 1980^2 + 12081^2 .

It is not a de Polignac number, because 149870961 - 2⁹ = 149870449 is a prime.

It is a super-2 number, since 2×149870961² = 44922609902127042, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149870951) 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, 135946 + ... + 137043.

Almost surely, 2^149870961 is an apocalyptic number.

It is an amenable number.

149870961 is a deficient number, since it is larger than the sum of its proper divisors (70158979).

149870961 is a wasteful number, since it uses less digits than its factorization.

149870961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273056 (or 273053 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 149870961 is about 12242.1795853516. The cubic root of 149870961 is about 531.1768804371.

The spelling of 149870961 in words is "one hundred forty-nine million, eight hundred seventy thousand, nine hundred sixty-one".