61245615 has 16 divisors (see below), whose sum is σ = 101154816. Its totient is φ = 31610400.

The previous prime is 61245601. The next prime is 61245629. The reversal of 61245615 is 51654216.

It is an interprime number because it is at equal distance from previous prime (61245601) and next prime (61245629).

It is not a de Polignac number, because 61245615 - 2¹² = 61241519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65391 + ... + 66320.

It is an arithmetic number, because the mean of its divisors is an integer number (6322176).

Almost surely, 2^61245615 is an apocalyptic number.

61245615 is a deficient number, since it is larger than the sum of its proper divisors (39909201).

61245615 is a wasteful number, since it uses less digits than its factorization.

61245615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131750.

The product of its digits is 7200, while the sum is 30.

The square root of 61245615 is about 7825.9577688613. The cubic root of 61245615 is about 394.1773510794.

The spelling of 61245615 in words is "sixty-one million, two hundred forty-five thousand, six hundred fifteen".