61400134 has 16 divisors (see below), whose sum is σ = 100292400. Its totient is φ = 28080864.

The previous prime is 61400123. The next prime is 61400137. The reversal of 61400134 is 43100416.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61400137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26757 + ... + 28960.

It is an arithmetic number, because the mean of its divisors is an integer number (6268275).

Almost surely, 2^61400134 is an apocalyptic number.

61400134 is a deficient number, since it is larger than the sum of its proper divisors (38892266).

61400134 is a wasteful number, since it uses less digits than its factorization.

61400134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55767.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 61400134 is about 7835.8237601416. The cubic root of 61400134 is about 394.5085679318.

The spelling of 61400134 in words is "sixty-one million, four hundred thousand, one hundred thirty-four".