615201461 has 4 divisors (see below), whose sum is σ = 703087392. Its totient is φ = 527315532.

The previous prime is 615201413. The next prime is 615201463. The reversal of 615201461 is 164102516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 615201461 - 2⁶ = 615201397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 615201461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615201463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43942955 + ... + 43942968.

It is an arithmetic number, because the mean of its divisors is an integer number (175771848).

Almost surely, 2^615201461 is an apocalyptic number.

It is an amenable number.

615201461 is a deficient number, since it is larger than the sum of its proper divisors (87885931).

615201461 is an equidigital number, since it uses as much as digits as its factorization.

615201461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87885930.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 615201461 is about 24803.2550484810. The cubic root of 615201461 is about 850.4963472472.

Adding to 615201461 its reverse (164102516), we get a palindrome (779303977).

The spelling of 615201461 in words is "six hundred fifteen million, two hundred one thousand, four hundred sixty-one".