61454359 has 4 divisors (see below), whose sum is σ = 62062920. Its totient is φ = 60845800.

The previous prime is 61454357. The next prime is 61454381. The reversal of 61454359 is 95345416.

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

It is a cyclic number.

It is not a de Polignac number, because 61454359 - 2¹ = 61454357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61454357) 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, 304129 + ... + 304330.

It is an arithmetic number, because the mean of its divisors is an integer number (15515730).

Almost surely, 2^61454359 is an apocalyptic number.

61454359 is a deficient number, since it is larger than the sum of its proper divisors (608561).

61454359 is a wasteful number, since it uses less digits than its factorization.

61454359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608560.

The product of its digits is 64800, while the sum is 37.

The square root of 61454359 is about 7839.2830667096. The cubic root of 61454359 is about 394.6246693762.

It can be divided in two parts, 6 and 1454359, that added together give a triangular number (1454365 = T₁₇₀₅).

The spelling of 61454359 in words is "sixty-one million, four hundred fifty-four thousand, three hundred fifty-nine".