1225620958 has 8 divisors (see below), whose sum is σ = 1859088240. Its totient is φ = 605924880.

The previous prime is 1225620953. The next prime is 1225620989. The reversal of 1225620958 is 8590265221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1225620958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225620953) 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, 3442578 + ... + 3442933.

It is an arithmetic number, because the mean of its divisors is an integer number (232386030).

Almost surely, 2^1225620958 is an apocalyptic number.

1225620958 is a deficient number, since it is larger than the sum of its proper divisors (633467282).

1225620958 is an equidigital number, since it uses as much as digits as its factorization.

1225620958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6885602.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1225620958 is about 35008.8697046906. The cubic root of 1225620958 is about 1070.1682438446.

The spelling of 1225620958 in words is "one billion, two hundred twenty-five million, six hundred twenty thousand, nine hundred fifty-eight".