1454031157 has 4 divisors (see below), whose sum is σ = 1454187916. Its totient is φ = 1453874400.

The previous prime is 1454031113. The next prime is 1454031167. The reversal of 1454031157 is 7511304541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1279421361 + 174609796 = 35769^2 + 13214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1454031157 is a prime.

It is a super-2 number, since 2×1454031157² = 4228413211053517298, 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 (1454031167) 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, 63528 + ... + 83329.

It is an arithmetic number, because the mean of its divisors is an integer number (363546979).

Almost surely, 2^1454031157 is an apocalyptic number.

It is an amenable number.

1454031157 is a deficient number, since it is larger than the sum of its proper divisors (156759).

1454031157 is an equidigital number, since it uses as much as digits as its factorization.

1454031157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156758.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1454031157 is about 38131.7604760126. The cubic root of 1454031157 is about 1132.8991150782.

Adding to 1454031157 its reverse (7511304541), we get a palindrome (8965335698).

The spelling of 1454031157 in words is "one billion, four hundred fifty-four million, thirty-one thousand, one hundred fifty-seven".