451440157 has 8 divisors (see below), whose sum is σ = 516208896. Its totient is φ = 386740752.

The previous prime is 451440137. The next prime is 451440161. The reversal of 451440157 is 751044154.

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

It is a cyclic number.

It is not a de Polignac number, because 451440157 - 2¹¹ = 451438109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451440107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2533 + ... + 30154.

It is an arithmetic number, because the mean of its divisors is an integer number (64526112).

Almost surely, 2^451440157 is an apocalyptic number.

It is an amenable number.

451440157 is a deficient number, since it is larger than the sum of its proper divisors (64768739).

451440157 is a wasteful number, since it uses less digits than its factorization.

451440157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34667.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 451440157 is about 21247.1211461694. The cubic root of 451440157 is about 767.1260477076.

The spelling of 451440157 in words is "four hundred fifty-one million, four hundred forty thousand, one hundred fifty-seven".