145400051 has 2 divisors, whose sum is σ = 145400052. Its totient is φ = 145400050.

The previous prime is 145400009. The next prime is 145400069. The reversal of 145400051 is 150004541.

It is a strong prime.

It is an emirp because it is prime and its reverse (150004541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145400051 - 2¹⁰ = 145399027 is a prime.

It is a super-2 number, since 2×145400051² = 42282349661605202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145399996 and 145400032.

It is not a weakly prime, because it can be changed into another prime (145400351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72700025 + 72700026.

It is an arithmetic number, because the mean of its divisors is an integer number (72700026).

Almost surely, 2^145400051 is an apocalyptic number.

145400051 is a deficient number, since it is larger than the sum of its proper divisors (1).

145400051 is an equidigital number, since it uses as much as digits as its factorization.

145400051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 145400051 is about 12058.1943507310. The cubic root of 145400051 is about 525.8414937303.

Adding to 145400051 its reverse (150004541), we get a palindrome (295404592).

The spelling of 145400051 in words is "one hundred forty-five million, four hundred thousand, fifty-one".