1900125158401 has 4 divisors (see below), whose sum is σ = 1905507949572. Its totient is φ = 1894742367232.

The previous prime is 1900125158303. The next prime is 1900125158411. The reversal of 1900125158401 is 1048515210091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 637594265025 + 1262530893376 = 798495^2 + 1123624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1900125158401 is a prime.

It is a super-2 number, since 2×1900125158401² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1900125158411) 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, 2691395056 + ... + 2691395761.

It is an arithmetic number, because the mean of its divisors is an integer number (476376987393).

Almost surely, 2^{1900125158401} is an apocalyptic number.

It is an amenable number.

1900125158401 is a deficient number, since it is larger than the sum of its proper divisors (5382791171).

1900125158401 is an equidigital number, since it uses as much as digits as its factorization.

1900125158401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382791170.

The product of its (nonzero) digits is 14400, while the sum is 37.

The spelling of 1900125158401 in words is "one trillion, nine hundred billion, one hundred twenty-five million, one hundred fifty-eight thousand, four hundred one".