1225758190 has 8 divisors (see below), whose sum is σ = 2206364760. Its totient is φ = 490303272.

The previous prime is 1225758161. The next prime is 1225758221. The reversal of 1225758190 is 918575221.

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

It is a super-2 number, since 2×1225758190² = 3004966280704152200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61287900 + ... + 61287919.

It is an arithmetic number, because the mean of its divisors is an integer number (275795595).

Almost surely, 2^1225758190 is an apocalyptic number.

1225758190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225758190 is a deficient number, since it is larger than the sum of its proper divisors (980606570).

1225758190 is a wasteful number, since it uses less digits than its factorization.

1225758190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122575826.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 1225758190 is about 35010.8296102792. The cubic root of 1225758190 is about 1070.2081843734.

The spelling of 1225758190 in words is "one billion, two hundred twenty-five million, seven hundred fifty-eight thousand, one hundred ninety".