651064542 has 32 divisors (see below), whose sum is σ = 1402583040. Its totient is φ = 200888160.

The previous prime is 651064541. The next prime is 651064553. The reversal of 651064542 is 245460156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651064541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71817 + ... + 80372.

It is an arithmetic number, because the mean of its divisors is an integer number (43830720).

Almost surely, 2^651064542 is an apocalyptic number.

651064542 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

651064542 is an abundant number, since it is smaller than the sum of its proper divisors (751518498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

651064542 is a wasteful number, since it uses less digits than its factorization.

651064542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152248.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 651064542 is about 25515.9664132088. The cubic root of 651064542 is about 866.7117437764.

The spelling of 651064542 in words is "six hundred fifty-one million, sixty-four thousand, five hundred forty-two".