145400402450 has 48 divisors (see below), whose sum is σ = 286524846504. Its totient is φ = 54706176000.

The previous prime is 145400402419. The next prime is 145400402461. The reversal of 145400402450 is 54204004541.

It can be written as a sum of positive squares in 12 ways, for example, as 12986653681 + 132413748769 = 113959^2 + 363887^2 .

It is a super-2 number, since 2×145400402450² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1392050 + ... + 1492850.

Almost surely, 2^145400402450 is an apocalyptic number.

145400402450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145400402450 is a deficient number, since it is larger than the sum of its proper divisors (141124444054).

145400402450 is a wasteful number, since it uses less digits than its factorization.

145400402450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102527 (or 102522 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 145400402450 its reverse (54204004541), we get a palindrome (199604406991).

The spelling of 145400402450 in words is "one hundred forty-five billion, four hundred million, four hundred two thousand, four hundred fifty".