1537225373 has 2 divisors, whose sum is σ = 1537225374. Its totient is φ = 1537225372.

The previous prime is 1537225337. The next prime is 1537225387. The reversal of 1537225373 is 3735227351.

Together with previous prime (1537225337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1393752889 + 143472484 = 37333^2 + 11978^2 .

It is an emirp because it is prime and its reverse (3735227351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1537225373 - 2²² = 1533031069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1537725373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 768612686 + 768612687.

It is an arithmetic number, because the mean of its divisors is an integer number (768612687).

Almost surely, 2^1537225373 is an apocalyptic number.

It is an amenable number.

1537225373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1537225373 is an equidigital number, since it uses as much as digits as its factorization.

1537225373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 38.

The square root of 1537225373 is about 39207.4657814044. The cubic root of 1537225373 is about 1154.1063965110.

The spelling of 1537225373 in words is "one billion, five hundred thirty-seven million, two hundred twenty-five thousand, three hundred seventy-three".