615152061 has 6 divisors (see below), whose sum is σ = 888552990. Its totient is φ = 410101368.

The previous prime is 615152053. The next prime is 615152063. The reversal of 615152061 is 160251516.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 457147161 + 158004900 = 21381^2 + 12570^2 .

It is not a de Polignac number, because 615152061 - 2³ = 615152053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615152063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34175106 + ... + 34175123.

It is an arithmetic number, because the mean of its divisors is an integer number (148092165).

Almost surely, 2^615152061 is an apocalyptic number.

It is an amenable number.

615152061 is a deficient number, since it is larger than the sum of its proper divisors (273400929).

615152061 is a wasteful number, since it uses less digits than its factorization.

615152061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68350235 (or 68350232 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 615152061 is about 24802.2591914527. The cubic root of 615152061 is about 850.4735819977.

The spelling of 615152061 in words is "six hundred fifteen million, one hundred fifty-two thousand, sixty-one".