132451778 has 16 divisors (see below), whose sum is σ = 207982080. Its totient is φ = 63184800.

The previous prime is 132451757. The next prime is 132451789. The reversal of 132451778 is 877154231.

It is a super-2 number, since 2×132451778² = 35086946990722568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10643 + ... + 19446.

It is an arithmetic number, because the mean of its divisors is an integer number (12998880).

Almost surely, 2^132451778 is an apocalyptic number.

132451778 is a deficient number, since it is larger than the sum of its proper divisors (75530302).

132451778 is a wasteful number, since it uses less digits than its factorization.

132451778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30193.

The product of its digits is 47040, while the sum is 38.

The square root of 132451778 is about 11508.7696127779. The cubic root of 132451778 is about 509.7445574559.

The spelling of 132451778 in words is "one hundred thirty-two million, four hundred fifty-one thousand, seven hundred seventy-eight".