61420135 has 8 divisors (see below), whose sum is σ = 84233376. Its totient is φ = 42116640.

The previous prime is 61420123. The next prime is 61420147. The reversal of 61420135 is 53102416.

It is an interprime number because it is at equal distance from previous prime (61420123) and next prime (61420147).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61420135 - 2²¹ = 59322983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877396 + ... + 877465.

It is an arithmetic number, because the mean of its divisors is an integer number (10529172).

Almost surely, 2^61420135 is an apocalyptic number.

61420135 is a deficient number, since it is larger than the sum of its proper divisors (22813241).

61420135 is a wasteful number, since it uses less digits than its factorization.

61420135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754873.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 61420135 is about 7837.0999100433. The cubic root of 61420135 is about 394.5514001361.

The spelling of 61420135 in words is "sixty-one million, four hundred twenty thousand, one hundred thirty-five".