149615461 has 2 divisors, whose sum is σ = 149615462. Its totient is φ = 149615460.

The previous prime is 149615413. The next prime is 149615491. The reversal of 149615461 is 164516941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149450625 + 164836 = 12225^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 149615461 - 2²¹ = 147518309 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149615461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149615491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74807730 + 74807731.

It is an arithmetic number, because the mean of its divisors is an integer number (74807731).

Almost surely, 2^149615461 is an apocalyptic number.

It is an amenable number.

149615461 is a deficient number, since it is larger than the sum of its proper divisors (1).

149615461 is an equidigital number, since it uses as much as digits as its factorization.

149615461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 149615461 is about 12231.7399007664. The cubic root of 149615461 is about 530.8748586448.

The spelling of 149615461 in words is "one hundred forty-nine million, six hundred fifteen thousand, four hundred sixty-one".