61142968 has 8 divisors (see below), whose sum is σ = 114643080. Its totient is φ = 30571480.

The previous prime is 61142957. The next prime is 61142987. The reversal of 61142968 is 86924116.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3821428 + ... + 3821443.

It is an arithmetic number, because the mean of its divisors is an integer number (14330385).

Almost surely, 2^61142968 is an apocalyptic number.

It is an amenable number.

61142968 is a deficient number, since it is larger than the sum of its proper divisors (53500112).

61142968 is a wasteful number, since it uses less digits than its factorization.

61142968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7642877 (or 7642873 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 61142968 is about 7819.3969076905. The cubic root of 61142968 is about 393.9570155895.

The spelling of 61142968 in words is "sixty-one million, one hundred forty-two thousand, nine hundred sixty-eight".