1403157453 has 4 divisors (see below), whose sum is σ = 1870876608. Its totient is φ = 935438300.

The previous prime is 1403157443. The next prime is 1403157461. The reversal of 1403157453 is 3547513041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3547513041 = 3 ⋅1182504347.

It is a cyclic number.

It is not a de Polignac number, because 1403157453 - 2⁵ = 1403157421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403157443) 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, 233859573 + ... + 233859578.

It is an arithmetic number, because the mean of its divisors is an integer number (467719152).

Almost surely, 2^1403157453 is an apocalyptic number.

It is an amenable number.

1403157453 is a deficient number, since it is larger than the sum of its proper divisors (467719155).

1403157453 is an equidigital number, since it uses as much as digits as its factorization.

1403157453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467719154.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 1403157453 is about 37458.7433451791. The cubic root of 1403157453 is about 1119.5293124753.

The spelling of 1403157453 in words is "one billion, four hundred three million, one hundred fifty-seven thousand, four hundred fifty-three".