1403125523 has 4 divisors (see below), whose sum is σ = 1403266920. Its totient is φ = 1402984128.

The previous prime is 1403125517. The next prime is 1403125543. The reversal of 1403125523 is 3255213041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1403125523 - 2¹² = 1403121427 is a prime.

It is a super-2 number, since 2×1403125523² = 3937522466588047058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1403125492 and 1403125501.

It is not an unprimeable number, because it can be changed into a prime (1403125543) 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, 54590 + ... + 76067.

It is an arithmetic number, because the mean of its divisors is an integer number (350816730).

Almost surely, 2^1403125523 is an apocalyptic number.

1403125523 is a deficient number, since it is larger than the sum of its proper divisors (141397).

1403125523 is a wasteful number, since it uses less digits than its factorization.

1403125523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141396.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1403125523 is about 37458.3171405230. The cubic root of 1403125523 is about 1119.5208204747.

Adding to 1403125523 its reverse (3255213041), we get a palindrome (4658338564).

The spelling of 1403125523 in words is "one billion, four hundred three million, one hundred twenty-five thousand, five hundred twenty-three".