1226472145 has 8 divisors (see below), whose sum is σ = 1472016960. Its totient is φ = 981010800.

The previous prime is 1226472139. The next prime is 1226472151. The reversal of 1226472145 is 5412746221.

It is an interprime number because it is at equal distance from previous prime (1226472139) and next prime (1226472151).

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

It is not a de Polignac number, because 1226472145 - 2⁵ = 1226472113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1226472145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18070 + ... + 52720.

It is an arithmetic number, because the mean of its divisors is an integer number (184002120).

Almost surely, 2^1226472145 is an apocalyptic number.

It is an amenable number.

1226472145 is a deficient number, since it is larger than the sum of its proper divisors (245544815).

1226472145 is an equidigital number, since it uses as much as digits as its factorization.

1226472145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41735.

The product of its digits is 26880, while the sum is 34.

The square root of 1226472145 is about 35021.0243282517. The cubic root of 1226472145 is about 1070.4159284972.

The spelling of 1226472145 in words is "one billion, two hundred twenty-six million, four hundred seventy-two thousand, one hundred forty-five".