61097351 has 4 divisors (see below), whose sum is σ = 69825552. Its totient is φ = 52369152.

The previous prime is 61097347. The next prime is 61097357. The reversal of 61097351 is 15379016.

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 61097351 - 2² = 61097347 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 (61097357) 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, 4364090 + ... + 4364103.

It is an arithmetic number, because the mean of its divisors is an integer number (17456388).

Almost surely, 2^61097351 is an apocalyptic number.

61097351 is a deficient number, since it is larger than the sum of its proper divisors (8728201).

61097351 is an equidigital number, since it uses as much as digits as its factorization.

61097351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8728200.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 61097351 is about 7816.4794504943. The cubic root of 61097351 is about 393.8590179027.

The spelling of 61097351 in words is "sixty-one million, ninety-seven thousand, three hundred fifty-one".