145401421263 has 8 divisors (see below), whose sum is σ = 221564070528. Its totient is φ = 83086526424.

The previous prime is 145401421223. The next prime is 145401421283. The reversal of 145401421263 is 362124104541.

It is a happy number.

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

It is not a de Polignac number, because 145401421263 - 2¹⁷ = 145401290191 is a prime.

It is a super-2 number, since 2×145401421263² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145401421213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3461938581 + ... + 3461938622.

It is an arithmetic number, because the mean of its divisors is an integer number (27695508816).

Almost surely, 2^145401421263 is an apocalyptic number.

145401421263 is a deficient number, since it is larger than the sum of its proper divisors (76162649265).

145401421263 is an equidigital number, since it uses as much as digits as its factorization.

145401421263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6923877213.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 145401421263 in words is "one hundred forty-five billion, four hundred one million, four hundred twenty-one thousand, two hundred sixty-three".