1200450623 has 4 divisors (see below), whose sum is σ = 1200640368. Its totient is φ = 1200260880.

The previous prime is 1200450611. The next prime is 1200450649. The reversal of 1200450623 is 3260540021.

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 1200450623 - 2²⁸ = 932015167 is a prime.

It is a super-2 number, since 2×1200450623² = 2882163396522176258, 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 (1200450673) 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, 85043 + ... + 98148.

It is an arithmetic number, because the mean of its divisors is an integer number (300160092).

Almost surely, 2^1200450623 is an apocalyptic number.

1200450623 is a deficient number, since it is larger than the sum of its proper divisors (189745).

1200450623 is an equidigital number, since it uses as much as digits as its factorization.

1200450623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189744.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1200450623 is about 34647.5197236397. The cubic root of 1200450623 is about 1062.7915687562.

Adding to 1200450623 its reverse (3260540021), we get a palindrome (4460990644).

The spelling of 1200450623 in words is "one billion, two hundred million, four hundred fifty thousand, six hundred twenty-three".