1225437070 has 32 divisors (see below), whose sum is σ = 2591416800. Its totient is φ = 411335040.

The previous prime is 1225437013. The next prime is 1225437071. The reversal of 1225437070 is 707345221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225437071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427045 + ... + 429904.

It is an arithmetic number, because the mean of its divisors is an integer number (80981775).

Almost surely, 2^1225437070 is an apocalyptic number.

1225437070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225437070 is an abundant number, since it is smaller than the sum of its proper divisors (1365979730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225437070 is a wasteful number, since it uses less digits than its factorization.

1225437070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856980.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 1225437070 is about 35006.2433003029. The cubic root of 1225437070 is about 1070.1147196998.

The spelling of 1225437070 in words is "one billion, two hundred twenty-five million, four hundred thirty-seven thousand, seventy".