61231454 has 4 divisors (see below), whose sum is σ = 91847184. Its totient is φ = 30615726.

The previous prime is 61231453. The next prime is 61231481. The reversal of 61231454 is 45413216.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61231453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15307862 + ... + 15307865.

It is an arithmetic number, because the mean of its divisors is an integer number (22961796).

Almost surely, 2^61231454 is an apocalyptic number.

61231454 is a deficient number, since it is larger than the sum of its proper divisors (30615730).

61231454 is a wasteful number, since it uses less digits than its factorization.

61231454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30615729.

The product of its digits is 2880, while the sum is 26.

The square root of 61231454 is about 7825.0529710667. The cubic root of 61231454 is about 394.1469686282.

The spelling of 61231454 in words is "sixty-one million, two hundred thirty-one thousand, four hundred fifty-four".