1201623455 has 8 divisors (see below), whose sum is σ = 1442139504. Its totient is φ = 961171200.

The previous prime is 1201623391. The next prime is 1201623469. The reversal of 1201623455 is 5543261021.

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

It is not a de Polignac number, because 1201623455 - 2⁶ = 1201623391 is a prime.

It is a super-2 number, since 2×1201623455² = 2887797855212274050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51215 + ... + 70895.

It is an arithmetic number, because the mean of its divisors is an integer number (180267438).

Almost surely, 2^1201623455 is an apocalyptic number.

1201623455 is a deficient number, since it is larger than the sum of its proper divisors (240516049).

1201623455 is a wasteful number, since it uses less digits than its factorization.

1201623455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31897.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1201623455 is about 34664.4407859120. The cubic root of 1201623455 is about 1063.1375694509.

Adding to 1201623455 its reverse (5543261021), we get a palindrome (6744884476).

The spelling of 1201623455 in words is "one billion, two hundred one million, six hundred twenty-three thousand, four hundred fifty-five".