451421135 has 16 divisors (see below), whose sum is σ = 603528192. Its totient is φ = 321319200.

The previous prime is 451421107. The next prime is 451421137. The reversal of 451421135 is 531124154.

It is not a de Polignac number, because 451421135 - 2²² = 447226831 is a prime.

It is a super-2 number, since 2×451421135² = 407562082249376450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451421137) 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, 84731 + ... + 89900.

It is an arithmetic number, because the mean of its divisors is an integer number (37720512).

Almost surely, 2^451421135 is an apocalyptic number.

451421135 is a deficient number, since it is larger than the sum of its proper divisors (152107057).

451421135 is a wasteful number, since it uses less digits than its factorization.

451421135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174694.

The product of its digits is 2400, while the sum is 26.

The square root of 451421135 is about 21246.6735043394. The cubic root of 451421135 is about 767.1152729487.

Adding to 451421135 its reverse (531124154), we get a palindrome (982545289).

The spelling of 451421135 in words is "four hundred fifty-one million, four hundred twenty-one thousand, one hundred thirty-five".