1401525557243 has 16 divisors (see below), whose sum is σ = 1616407732224. Its totient is φ = 1190333491200.

The previous prime is 1401525557231. The next prime is 1401525557249. The reversal of 1401525557243 is 3427555251041.

It is not a de Polignac number, because 1401525557243 - 2²² = 1401521362939 is a prime.

It is a super-2 number, since 2×1401525557243² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401525557194 and 1401525557203.

It is not an unprimeable number, because it can be changed into a prime (1401525557249) 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, 301958 + ... + 1701243.

It is an arithmetic number, because the mean of its divisors is an integer number (101025483264).

Almost surely, 2^{1401525557243} is an apocalyptic number.

1401525557243 is a deficient number, since it is larger than the sum of its proper divisors (214882174981).

1401525557243 is a wasteful number, since it uses less digits than its factorization.

1401525557243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004122.

The product of its (nonzero) digits is 840000, while the sum is 44.

The spelling of 1401525557243 in words is "one trillion, four hundred one billion, five hundred twenty-five million, five hundred fifty-seven thousand, two hundred forty-three".