64142554 has 8 divisors (see below), whose sum is σ = 109958688. Its totient is φ = 27489660.

The previous prime is 64142539. The next prime is 64142557. The reversal of 64142554 is 45524146.

It is a happy number.

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

It is a super-2 number, since 2×64142554² = 8228534467285832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64142557) 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, 2290792 + ... + 2290819.

It is an arithmetic number, because the mean of its divisors is an integer number (13744836).

Almost surely, 2^64142554 is an apocalyptic number.

64142554 is a deficient number, since it is larger than the sum of its proper divisors (45816134).

64142554 is a wasteful number, since it uses less digits than its factorization.

64142554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581620.

The product of its digits is 19200, while the sum is 31.

The square root of 64142554 is about 8008.9046691792. The cubic root of 64142554 is about 400.2967672685.

The spelling of 64142554 in words is "sixty-four million, one hundred forty-two thousand, five hundred fifty-four".