61140346 has 4 divisors (see below), whose sum is σ = 91710522. Its totient is φ = 30570172.

The previous prime is 61140341. The next prime is 61140349. The reversal of 61140346 is 64304116.

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

It can be written as a sum of positive squares in only one way, i.e., 57380625 + 3759721 = 7575^2 + 1939^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61140346.

It is not an unprimeable number, because it can be changed into a prime (61140341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15285085 + ... + 15285088.

Almost surely, 2^61140346 is an apocalyptic number.

61140346 is a deficient number, since it is larger than the sum of its proper divisors (30570176).

61140346 is a wasteful number, since it uses less digits than its factorization.

61140346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30570175.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 61140346 is about 7819.2292459040. The cubic root of 61140346 is about 393.9513841430.

The spelling of 61140346 in words is "sixty-one million, one hundred forty thousand, three hundred forty-six".